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This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Start your toy engines -- this is going to be a fast and friction-filled race!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This science fair project idea investigates how the shape of an object affects drag.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Help your first grader design and create his very own bird feeder out of an empty milk carton.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.